Haloalkanes and Haloarenes - Result Question 42

####42.

products are formed when the following compounds is treated with $Br_2$ in the presence of $FeBr_3$ ?

[2014]Cc1cccc(C)c1

(a)Cc1ccc(Br)c(C)c1

(b)Cc1ccc(Br)c(C)c1 andCc1cccc(C)c1Br

(c)Cc1ccc(Br)c(C)c1Cc1ccc(Br)c(C)c1

(d)Cc1ccc(Br)c(C)c1

andCc1cc(C)cc(Br)c1

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Solution:

  1. (c) Methyl group is ortho para directing but due to steric hindrance effect, generated by two $CH_3$ groups substitution will not take place on position (I). Hence, only two products are possible.Cc1cccc(C)c1

i.e.Cc1cccc(C)c1Cc1ccc(Br)c(C)c1



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